Window 7 Mirrored Boot Drive Failed Redundancy "The Plex is Missing"


  • I tried to mirror my1g boot drive with to a 2g drive and came up with the following problem.

    Failed Redundancy on both drives.  When I try to Reactivate the drive I get a message "the plex is missing."  How do I recover from this?

    Saturday, October 01, 2011 12:50 PM

All replies

  • Hi,


    I would like to confirm the following details:


    1.    What is your 1G boot drive?

    2.    How did you mirror this drive? Which program did you use to achieve this purpose?


    Alex Zhao

    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Tuesday, October 04, 2011 8:21 AM
  • My C drive that has Windows on it is my boot drive which is on 1 gig of storage

    I used Windows 7 Prof to create a mirror of drive C to a second drive that is 2 gigs storage which  is a WD brand new drive.

    Tuesday, October 04, 2011 7:51 PM
  • one GB or one TB? 

    I am assuming they are already, but make sure the disks are dynamic and not basic.

    If these are TB drives, use diskpart.exe to convert them from a MBR type setup to GPT. 

    Wednesday, October 05, 2011 4:52 AM